Optical spectroscopy has played a key role in the development of modern physics, from the early confirmation of quantum mechanics predictions of the spectrum of hydrogen to the observation of stars and interplanetary matter by astronomers refining their theory of the universe. Today, optical spectroscopy has become a routine method for the physicists and the astronomers, but also gained acceptance with chemists, biologists and metallurgists, amongst others. At the heart of an optical spectroscopy apparatus, the single device most closely associated with spectroscopic performance is the diffraction grating. It is therefore no surprise to see that the study and manufacture of diffraction gratings remain the domain of excellence of HORIBA Jobin Yvon and a select few competitors worldwide.

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